Intermolecular and Ionic Forces - web.gccaz.edu

Intermolecular and Ionic Forces Introduction: Molecules are attracted to each other in the liquid and solid states by Intermolecular , or attractive, Forces . These are the attractions that must be overcome when a liquid becomes a gas (vaporization) or a solid becomes a gas (sublimation). In the gas phase molecules are much farther apart and, therefore, do not interact as strongly as they do in the liquid (condensed) phase. Thus, the energy required to boil or vaporize a pure substance is a measure of the strength of the Intermolecular Forces in that substance. In general, Intermolecular Forces are much weaker than the Ionic and covalent bonds that hold together the atoms and ions in a compound. For example, about 40 kJ of energy are required to vaporize 18 grams of water molecules , completely convert 18 grams of water to water vapor or steam.

Intermolecular and Ionic Forces ... general, intermolecular forces are much weaker than the ionic and covalent bonds that hold together the atoms and ions in a compound. ... compared in this lab. The alkane used in this activity is pentane, CH 3 CH 2 CH 2 CH 2 CH 3. Alcohols are

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  Force, Covalent, Ionic, Intermolecular, Intermolecular and ionic forces

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